No explaination, but a good one would be that Kerry voters sought out election sites that were being canvassed. Maybe even a leak as to where the poll watchers would be? This was raised right after the election. C'mon guys fess up. Did the pollesters get scammed?
Quite frankly, I do not give a rat's a...er behind why, I just celebrate and thank God every-single-day-since-11/3/04 that that POgarbage is not now, nor will he ever be in our White House.